表面曝气桨的叶片数目为4-12片；
应用多层桨自旋导流技术，设计了一种新型自旋导流表面曝气反应器。
A novel surface aeration reactor is designed with incorporation of self-rotating flow guide (SRFG) for multiple impellers.
在曝气系统的选择上，比较分析了微孔曝气系统和表面曝气系统，提出了如何提高微孔曝气和表面曝气系统的可调节性能的一些措施。
Primarily, some currently applied aerate system are compared, some method is presented to improve the miraco bubble aerate system and the surface aerate system.
制备的滤料具有巨大的比表面积，有利于微生物附着生长，是一种新型高效的曝气生物滤池滤料。
The prepared filter material has huge specific surface area, is favorable for the attached growth of microorganisms, and is a novel efficient filter material for the biological aerated filter.
制备的滤料具有巨大的比表面积，有利于微生物附着生长，是一种新型高效的曝气生物滤池滤料。
The prepared filter material has huge specific surface area, is favorable for the attached growth of microorganisms, and is a novel efficient filter material for the biological aerated filter.
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